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  • MEMS

MA-HRA381-H23-3N

The MA-HRA381-H23-3N is a small package, high SNR and analog output bottom port MEMS microphone, consists of a MEMS sensor and a low noise level ASIC.

Features

  • 3.5x2.65x0.98mm Bottom Port

  • High SNR of 68dBA

  • High AOP of 130dBSPL

  • Narrow Sensitivity +/-1dB

  • RF Shielded

  • Compatible with Standard SMD Reflow Technology

  • RoHS Compliance & Halogen Free

Performance Parameters

ParameterSymbol
ConditionMin
Nom.
MaxUnit
SensitivitySf=1kHz, Pin=1Pa, 0dB=1V/Pa-39-38-37dB
Operating VoltageVDD
2.42.753.3V
Directivity

Omni-directional
Polarity
Sound pressure increaseOutput voltage increase
Sensitivity vs. VoltageΔSVs= 3.3V to 2.4V0.5dB
Output ImpedanceZOUTf=1kHz

400
Ω
Current Consumption1I1.6 V to 3.3V
110200µA
S/N RatioS/N20-20KHz Bandwidth, A-Weighted6668
dBA
Total Harmonic DistortionTHD94dB SPL @1KHz
0.10.5%
Total Harmonic DistortionTHD116dB SPL @1KHz
1
%
Acoustic Overload PoinAOPTHD 10%@1KHz
130
dBSPL
Power Supply RejectionPSR100mVpp Squarewave @217Hz, A-weighted
-106-90dB
Power Supply Rejection RatioPSRR200mVpp Sinewave @1KHz6076
dB
DC outputVDC

1.30
V
Low Frequency Roll-offLFRO

30
Hz
Output load
Cload


150pF
Output loadRload
10
100KΩ

Note：Frequency response, sensitivity and current consumption are tested by 100% on product line.


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